Some bacteria can’t grow in the presence of oxygen while other microbes can’t survive without it.   A. For species that require oxygen for growth, how is oxygen used in the cell?     B. For species that are killed by oxygen, why is it lethal?       C. How do aerobic species deal with the side effects of oxygen?       D. What is the name of the media that microbiologists use to determine the oxygen requirement of a microbial species?       E.  Briefly describe the growth profile of an obligate anaerobe in the media in which aerotolerance is assessed      

When in the bacterial growth curve would antibiotics or other antimicrobial compounds be synthesized?

Describe the discovery of Archaea in 1977. How were researchers attempting to classify microbes before Woese’s discovery? What did Carl Woese and George Fox do?

Which substance is the limiting reactant when 2.0 g of sulfur reacts with 3.0 g of oxygen and 4.0 g of sodium hydroxide according to the following chemical equation: 2 S(s) + 3 O2(g) + 4 NaOH(aq) → 2 Na2SO4(aq) + 2 H2O(l)

Please match. Each correct matching worth 3 points.

Which of the following has the greatest mass? A) 6.0 × 1023  atoms of O B) 3.0 × 1023  molecules of O2 C) 2.0 × 1023  molecules of O3 D) All have the same mass.

A quarter note in a 2/2 time signature is worth more beats than an eighth note in a 4/4 time signature

Refer to the table below for the following questions. If you inoculated 12 cells of this species into a liquid broth and placed the tube in a 25 C incubator at 10 am what would be the size of the population at 3 pm? Assume that all cells survive. Temperature C Generation time (min) 5 no growth 15 180 25 60 35 30 45 No growth

Which of the following is not a benefit that arises from living in a biofilm (from a microbial perspective).

A quarter rest is longer than a quarter note.